Can't find the "Default" tab usually located next to "Compositing"
Hi and welcome to Blender community :)

You can use the 'Layout' view as default. The things that changes is that are shown by default some tools focusing on each type of work you will be doing. For me, 80% of my time I use in the 'Layout' tab. Script and Sculpting are for more specific works. But if you feel lost you can go over this '+' icon right next to the other tabs and add the tab you are looking for. Hope it helps